Question 1

What do measures of central tendency describe?

Accepted Answer

A)   How reliably the findings can be generalized
B)   The amount of dispersion in the sample
C)   The accuracy of predictions made
D)   The average member of the sampleE) A) and D)
F) B) and C)

Question 2

What level of measurement would a type of nursing degree be considered?

Accepted Answer

A)   Nominal
B)   Ordinal
C)   Interval
D)   RatioE) B) and C)
F) A) and D)

Question 3

What is indicated by a score reported to be in the 75th percentile?

Accepted Answer

A)   The score is at the median.
B)   The score has exceeded the mode.
C)   The score is exceeded by only 25% of the cases.
D)   The score represents the average of all scores measured at this time.E) B) and C)
F) A) and C) C

Question 4

What is the characteristic that determines the assignment of a number to an object for measurement?

Accepted Answer

A)   The object must vary within a narrow range to meet category requirements.
B)   All objects assigned a specific measurement number must be similar to all other objects assigned the same number.
C)   The objects assigned to one specific number must be positively related to the dependent variable of the study.
D)   The objects assigned to one specific number must be positively related to the independent variable of the study.E) All of the above
F) A) and D)

Question 5

Which of the following types of data analysis allows the researcher to describe and summarize the characteristics of a sample?

Accepted Answer

A)   Inferential statistics
B)   Descriptive statistics
C)   Nonparametric statistics
D)   Mathematical statisticsE) None of the above
F) C) and D)

Question 6

Factor analysis is used to:

Accepted Answer

A)   statistically control for a variable and measure differences among group means.
B)   take a large number of variables and group them into a smaller number of factors.
C)   test the relationship between two variables measured at interval or ratio level data.
D)   measure the relationship between one outcome or dependent variable and several dependent variables.E) B) and D)
F) A) and B)

Question 7

What is indicated by a correlation?

Accepted Answer

A)   The most frequently occurring score
B)   Variability of scores from the mean
C)   Range of the middle 50% of the scores
D)   Magnitude and direction of the relationship between variablesE) A) and B)
F) C) and D)

Question 8

In a study about how women adjust to living with breast cancer,the youngest participant was 23 years old and the oldest participant was 89 years old.What do these facts represent?

Accepted Answer

A)   Mean age
B)   Modal age
C)   Median age
D)   Range in ageE) C) and D)
F) All of the above

Question 9

What specific type of statistic is exemplified by the percentage of nurses holding various nursing degrees?

Accepted Answer

A)   Inferential statistics
B)   Descriptive statistics
C)   Nonparametric statistics
D)   Mathematical statisticsE) A) and B)
F) A) and C)

Question 10

What level of measurement is indicated by the following categories of weight class for boxing?
Lightweight 57-61 kilograms
Welterweight 62-67 kilograms
Middleweight 67-72 kilograms
Heavy middleweight 73-80 kilograms

Accepted Answer

A)   Nominal
B)   Ordinal
C)   Interval
D)   RatioE) B) and D)
F) A) and B)

Question 11

Which of the following alpha levels can be interpreted as a highly statistically significant result?

Accepted Answer

A)   p = .20
B)   p = .02
C)   p = .002
D)   p = .0002E) B) and D)
F) A) and B)

Question 12

What conclusion can be drawn from statistics that indicate that the average cost of a house in a specific neighbourhood is $150,000,the range is $48,000 to $2,000,000,the median house cost is $98,000,and the mode is $90,000?

Accepted Answer

A)   The standard deviation is small.
B)   The mode can be calculated from the median.
C)   The cost of a "typical" house in this neighbourhood is $150,000.
D)   The mean does not reflect the true housing cost in this neighbourhood.E) B) and C)
F) None of the above C

Question 13

Which of the following terms represents the middle score in a frequency distribution?

Accepted Answer

A)   Mean
B)   Mode
C)   Median
D)   PercentileE) A) and B)
F) C) and D)

Question 14

Which of the following parametric statistical tests compares the difference between mental status scores for patients with dementia (Group 1) and those for patients with confusion from dehydration (Group 2) ?

Accepted Answer

A)   The t test
B)   Pearson Product Moment Correlation Coefficient
C)   Chi-square
D)   Meta-analysisE) A) and C)
F) C) and D)

Question 15

The change in heart rate in patients with diabetes mellitus was reported as 10.95 ± 9.21 for the Adult type 1 group.How many standard deviations from the mean is a change of 23?

Accepted Answer

A)   1 SD
B)   2 SD
C)   3 SD
D)   4 SDE) A) and B)
F) A) and C)

Question 16

Which of the following terms describes the assignment of numbers to objects or events?

Accepted Answer

A)   Prediction
B)   Dispersion
C)   Variability
D)   MeasurementE) B) and D)
F) A) and B)

Question 17

Which of the following types of data analysis allows researchers to estimate how reliably data can be used to generalize the findings of a study?

Accepted Answer

A)   Inferential statistics
B)   Descriptive statistics
C)   Nonparametric statistics
D)   Mathematical statisticsE) B) and C)
F) A) and D) A

Question 18

In a study about the willingness of nurses to provide care to patients with AIDS,it was found that the deeper the nurses' spirituality,the greater was the willingness to provide care.What type of correlation does this finding represent?

Accepted Answer

A)   No correlation
B)   Perfect correlation
C)   Positive correlation
D)   Negative correlationE) C) and D)
F) A) and D)

Question 19

A measure of death anxiety resulted in a mean score of 5.4 with a standard deviation of 1.6.Where would 34% of the scores fall?

Accepted Answer

A)   Between 2.2 and 8.6
B)   Between 3.8 and 7.0
C)   Between 3.8 and 5.4
D)   Between 5.4 and 8.6E) B) and C)
F) A) and B)

Question 20

Which of the following levels of measurement provides the greatest flexibility in choosing statistical procedures?

Accepted Answer

A)   Nominal
B)   Ordinal
C)   Interval
D)   RatioE) A) and D)
F) A) and B)

Exam 16: Quantitative Data Analysis

What do measures of central tendency describe?

Correct AnswerverifiedShow Answer

What level of measurement would a type of nursing degree be considered?

Correct AnswerverifiedShow Answer

What is indicated by a score reported to be in the 75th percentile?

Correct AnswerverifiedC

What is the characteristic that determines the assignment of a number to an object for measurement?

Correct AnswerverifiedShow Answer

Which of the following types of data analysis allows the researcher to describe and summarize the characteristics of a sample?

Correct AnswerverifiedShow Answer

Factor analysis is used to:

Correct AnswerverifiedShow Answer

What is indicated by a correlation?

Correct AnswerverifiedShow Answer

In a study about how women adjust to living with breast cancer,the youngest participant was 23 years old and the oldest participant was 89 years old.What do these facts represent?

Correct AnswerverifiedShow Answer

What specific type of statistic is exemplified by the percentage of nurses holding various nursing degrees?

Correct AnswerverifiedShow Answer

What level of measurement is indicated by the following categories of weight class for boxing? Lightweight 57-61 kilograms Welterweight 62-67 kilograms Middleweight 67-72 kilograms Heavy middleweight 73-80 kilograms

Correct AnswerverifiedShow Answer

Which of the following alpha levels can be interpreted as a highly statistically significant result?

Correct AnswerverifiedShow Answer

What conclusion can be drawn from statistics that indicate that the average cost of a house in a specific neighbourhood is $150,000,the range is $48,000 to $2,000,000,the median house cost is $98,000,and the mode is $90,000?

Correct AnswerverifiedC

Which of the following terms represents the middle score in a frequency distribution?

Correct AnswerverifiedShow Answer

Which of the following parametric statistical tests compares the difference between mental status scores for patients with dementia (Group 1) and those for patients with confusion from dehydration (Group 2) ?

Correct AnswerverifiedShow Answer

The change in heart rate in patients with diabetes mellitus was reported as 10.95 ± 9.21 for the Adult type 1 group.How many standard deviations from the mean is a change of 23?

Correct AnswerverifiedShow Answer

Which of the following terms describes the assignment of numbers to objects or events?

Correct AnswerverifiedShow Answer

Which of the following types of data analysis allows researchers to estimate how reliably data can be used to generalize the findings of a study?

Correct AnswerverifiedA

In a study about the willingness of nurses to provide care to patients with AIDS,it was found that the deeper the nurses' spirituality,the greater was the willingness to provide care.What type of correlation does this finding represent?

Correct AnswerverifiedShow Answer

A measure of death anxiety resulted in a mean score of 5.4 with a standard deviation of 1.6.Where would 34% of the scores fall?

Correct AnswerverifiedShow Answer

Which of the following levels of measurement provides the greatest flexibility in choosing statistical procedures?

Correct AnswerverifiedShow Answer

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C

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A

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